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Multilayer optical sheet assembly

A technology for optical sheets and components, applied in optical elements, optical elements, optics, etc., can solve the problems of expensive manufacturing and unsatisfactory light modulation.

Inactive Publication Date: 2017-05-03
常宝公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, according to this related art patent document, manufacturing cost is expensive due to thick optical sheet and complicated manufacturing process
In addition, since its light modulation is not satisfactory, its brightness needs to be improved

Method used

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  • Multilayer optical sheet assembly
  • Multilayer optical sheet assembly
  • Multilayer optical sheet assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] An optical sheet assembly including a first base film, a second base film formed on one side of the first base film, and a third base film formed on one side of the second base film was manufactured. Here, the first base film is formed of PET and has a thickness of 25 μm, and a first pattern layer with a thickness of 15 μm is formed on the first base film. The thickness of the second base film was 25 μm, and a second pattern layer (14 μm to 16 μm in thickness) adjacent to and supporting the lower surface of the first base film was formed on the upper surface of the second base film. The thickness of the third base film was 120 μm, and grooves with a depth of 20 μm were formed in the surface of the third base film bonded to the second base film. The third base film had a diffusion layer (formed of 100 parts by weight of tris(2-acryloyloxyethyl)isocyanurate-2-acrylic acid and 30 parts by weight of PMMA beads) containing light scattering beads. The second pattern layer is...

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Abstract

Disclosed is an optical sheet assembly. A first base film has a first pattern layer disposed thereon. A second base film is disposed on one surface of the first base film and has a second pattern layer disposed on a top surface thereof. The second pattern layer abuts and supports a bottom surface of the first base film. A third base film is disposed on one surface of the second base film and has light-scattering beads being contained therein and recesses formed in one surface thereof bonded to the second base film. The second pattern layer is oriented in the same direction as the first pattern layer. The diameters of the recesses are greater than diameters of entrances thereof. Each of the first pattern layer and the second pattern layer includes a plurality of protrusions and a plurality of recesses defined between the protrusions.

Description

technical field [0001] The present invention generally relates to an optical sheet assembly, and more particularly, to an optical sheet assembly in which a prism sheet with a regular slope, a prism sheet with a variable slope, and a diffusion member are laminated in multiple layers to improve light modulation and light diffusion. Background technique [0002] Generally, a liquid crystal display (Liquid Crystal Display, LCD) uses white light provided by a backlight unit (BLU) arranged at the back of the liquid crystal display to display image information. [0003] This backlight unit includes: a light source, a light guide plate (Light Guide Plate, LGP), a reflection plate and an optical sheet. [0004] The optical sheet is formed by sequentially laminating a base layer, a prism sheet, and a protective sheet. [0005] The base layer serves to scatter light emitted from the light guide plate and incident to a display portion (not shown), thereby making the luminance distribut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02
CPCG02B5/0231B32B3/30B32B7/12B32B23/08B32B27/08B32B27/281B32B27/285B32B27/286B32B27/32B32B27/36B32B27/365B32B2250/24B32B2255/10B32B2255/26B32B2264/025B32B2307/40B32B2307/412B32B2307/732B32B2457/202B32B2551/00G02B5/0242G02B5/045
Inventor 金相根朴容完明荣吉权成五延济环金兑和
Owner 常宝公司